349198993453 has 4 divisors (see below), whose sum is σ = 349201185148. Its totient is φ = 349196801760.

The previous prime is 349198993411. The next prime is 349198993483. The reversal of 349198993453 is 354399891943.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151051154409 + 198147839044 = 388653^2 + 445138^2 .

It is a cyclic number.

It is not a de Polignac number, because 349198993453 - 2¹⁷ = 349198862381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349198993483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836376 + ... + 1182337.

It is an arithmetic number, because the mean of its divisors is an integer number (87300296287).

Almost surely, 2^349198993453 is an apocalyptic number.

It is an amenable number.

349198993453 is a deficient number, since it is larger than the sum of its proper divisors (2191695).

349198993453 is a wasteful number, since it uses less digits than its factorization.

349198993453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191694.

The product of its digits is 113374080, while the sum is 67.

The spelling of 349198993453 in words is "three hundred forty-nine billion, one hundred ninety-eight million, nine hundred ninety-three thousand, four hundred fifty-three".